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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2, 3-4); 2 (, 1-2, 3 to 12); 3 (, 1-2, 3 to 7); 4 (, 5 to 12); 5 (, 1-2, 3 to 12); 6 (, 1-2, 3 to 12); 7 (, 1-2, 3 to 12); 8 (, 1-2, 3 to 12); 9 (, 1-2, 3 to 12); 10 (, 1-2, 3 to 12); 11 (, 1-2, 3 to 12); 12 (, 1-2, 3 to 12); 13 (, 1‐2, 3 to 12); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 4, 7 to 28
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 1(1-4), 2000: 2(1-12), 2001: 3(1-12), 2002: 4(1-12), 2003: 5(1-12), 2004: 6(1-12), 2005: 7(1-12), 2006: 8(1-12), 2007: 9(1-12), 2008: 10(1-12), 2009: 11(1-12), 2010: 12(1-12), 2011: 13(1-12), 2012: 14(1-12), 2013: 15(1-12), 2014: 16(1-12), 2015: 17(1-12), 2016: 18(1-12), 2017: 19(1-12), 2018: 20(1-12), 2019: 21(1-12), 2020: 22(1-12), 2021: 23(1-12), 2022: 24(1-12), 2023: 25(1-24), 2024: 26(1-24), 2025: 27(1-24), 2026: 28(1-3)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1 (1, 2 to 4 to 9, 11, 12); 2 (1?2, 2 to 9, 11, 12); 3 (1?2, 3 to 9, 11, 12); 4 (1?2, 3 to 9, 11, 12); 5 (1?2, 3 to 9, 11, 12); 6 (1?2, 3 to 9, 11, 12); 7 (1?2, 3 to 9, 11, 12); 8 (1?2, 3 to 9, 11, 12); 9 (1?2, 3 to 9, 11, 12); 11 (1?2, 3 to 9, 11, 12); 12 (1?2, 3 to 9, 11, 12); 13 (1?2, 3 to 9, 11, 12); 14 (1?2, 3 to 9, 11, 12); 15 (1?2, 3 to 9, 11, 12); 16 (1 to 9, 11); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11 to 14, 16 to 19, 21 to 24); 26 (1 to 9, 11 to 19, 21 to 24); 27 (1 to 9, 11 to 14, 17 to 19)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (1, 2 to 4 to 9, 11, 12); 2 (1?2, 2 to 9, 11, 12); 3 (1?2, 3 to 9, 11, 12); 4 (1?2, 3 to 9, 11, 12); 5 (1?2, 3 to 9, 11, 12); 6 (1?2, 3 to 9, 11, 12); 7 (1?2, 3 to 9, 11, 12); 8 (1?2, 3 to 9, 11, 12); 9 (1?2, 3 to 9, 11, 12); 11 (1?2, 3 to 9, 11, 12); 12 (1?2, 3 to 9, 11, 12); 13 (1?2, 3 to 9, 11, 12); 14 (1?2, 3 to 9, 11, 12); 15 (1?2, 3 to 9, 11, 12); 16 (1 to 9, 11); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11 to 14, 16 to 19, 21 to 24); 26 (1 to 9, 11 to 19, 21 to 24); 27 (1 to 9, 11 to 14, 17, 18)
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Library of Congress
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Preserved
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2025-04-07
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13 (1‐2); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 5, 8 to 11); 20 (2 to 5, 7 to 12); 21 (1 to 12); 22 (1, 2, 4 to 7, 9 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1, 12, 15 to 17, 19 to 21); 26 (5 to 9, 23); 27 (3, 4)
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